442414221220 has 12 divisors (see below), whose sum is σ = 929069864604. Its totient is φ = 176965688480.

The previous prime is 442414221199. The next prime is 442414221251. The reversal of 442414221220 is 22122414244.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 158896309924 + 283517911296 = 398618^2 + 532464^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11060355511 + ... + 11060355550.

It is an arithmetic number, because the mean of its divisors is an integer number (77422488717).

Almost surely, 2^442414221220 is an apocalyptic number.

It is an amenable number.

442414221220 is an abundant number, since it is smaller than the sum of its proper divisors (486655643384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442414221220 is a wasteful number, since it uses less digits than its factorization.

442414221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22120711070 (or 22120711068 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 442414221220 its reverse (22122414244), we get a palindrome (464536635464).

The spelling of 442414221220 in words is "four hundred forty-two billion, four hundred fourteen million, two hundred twenty-one thousand, two hundred twenty".